 However, in 1499 he was recalled to court, and in the following year he accompanied the King on a state visit to France.In 1501 he was sworn of the Privy Council, and on 16 June of that year was named Lord Treasurer.In the same year he was involved in successful diplomatic negotiations with King Ferdinand and Queen Isabella for a marriage between the Spanish Infanta, Catherine of Aragon, and Henry VII's eldest son Arthur, Prince of Wales.